Am sure Craig 12 you will get lots of replies.
My take is
Compared to UK all properties in Spain are cheap. More to the point is , is it value for money.
Would factor in 15-20% above purchase price for fees.
Would estimate 70% of coastal properties are fully occupied by the Spanish.
Areas to avoid are the purpose built urbanisations/ golf courses….dotted about everywhere and too numerous to mention.
Safe from demolition ! This is Spain. Nothing can ever be guaranteed here.
Everyone has a right to haggle. The worst than can happen is the vendor shows you the door. Unless of course they are really really desparate.
Point to remember though is if the catastral value is more than you have haggled down to expect the Spanish Government to send you a bill for the difference.